Project supported by the National Natural Science Foundation of China (Grant No. 29672004)
The physiologically active groups such as purine and pyrimidine bases are introduced to the asymmetric synthesis. The optically pure compounds bearing purine and pyrimidine bases (5a—5e) were prepared via the asymmet...
The correlation between ^(13)C chemical shifts of DNA and structure parameters (the mainaxis helix twist angle Ω, base--plane roll angle ρ, main chain torsion angle δ and pro-peller twist angle ω) has been discove...